The Paris Agreement at Three

In its infancy, the Paris Agreement carried the promise of a truly global climate solution. Supporters still say the Agreement is the first step in setting the global economy toward a sustainable future, but U.N. reports now say current commitments are only a fraction as strong as they need to be, and critics say it's dangerously delusional to think the pact is ambitious enough to avoid catastrophic climate change. Katharine Mach, Senior Research Scientist at Stanford University, and Trevor Houser, Partner at the Rhodium Group, join host Greg Dalton for a Paris checkup, three years on.